Storage-receptacle.



E. HERRMANN.

STORAGE REGEPTAGL.

APPLICATION FILED maza, 1908.

Patented Dec. 28, 1909.

/QM 9*- @www i UNITED orricn.

ERNST IHIERIRISLIANN.` OF USTER, SWITZERLAND.

, use the same,jreference i obtained from alkali peroxids by -the actionD product loses receptacle, by means of. which STORAGE-RECEPTACLE.

To all whom 'it may concern.'

Be it known that I, ERNST' HERRMANN, asubject of the Emperor of. Germany, residing at `Ziegeleistrasse 1946, Uster, Switzerland, have invented certa-in new and'useful Improvements in Storage-Receptacles; and

I do hereby4 declare the following to be a' ful1clear, and exact description'of the invention, such as will enable others skilled in the art to which it appart-aims to make and companying drawings, and to letters of reference marked thereon, 'which form a part of this specication.

My inventionvrelate's to improvements in receptacles, more particularly adapted for storing alkalineperoxids in a soapy powder.

rThe bleaching properties of active oxygen,

of water, have longbeen utilized in the textile industries, for instance for bleaching tussah silk and for other purposes.- For domestic usev the direct elnployment of alkalil peroxids,'e. g. sodiump'eroxid, is attended with considerable. drawbacks and danger. Without'some special packing this its valuable properties; it decomposes under Ithe inuence of the moisture and carbonio acid otE-the air, liberating oxygen; on d1ssolv1ng 1n water 1t may cau-se ex plosions, since'the' peroxid often contains small -pieces of non-oxidized alkali metal.

Numerous methods and modes of storing have already been proposed in order te facilitate the use of alkali peroxids for .do-

mestic washing purposes andrender its em- A ployment safe.

By none of these methods7 however, can the peroxid be uniformily mixed with and dissolved in the Water without danger.

The subject of the present invention is a the desired ends can be attained.

The new receptacle 'consists of a vessel which can be filled with the washing-powder, inclosing a second smaller detached vessel which is surrounded by the powder and contains the alkali peroxid. This alkali peroxid container is speciically heavier than water and is closed by a substance which melts in moderately warm water.

The alkali peroxid container is not'con-A nected with the vessel of washing-powder, nor with the latter itself. On the washing- `powder vessel being opened, therefore, and

being had to the acthe contents shaken into a copper, or similar wash-vesselffilled with water, the. alkali per- Specification of Letters Latent, latentgd Deo, 28, 1909, Application 4filed 'December 28, 1908. Serial No. 469,541.

oxid container will immediately drol out of the mass of washingqiowder andv sin to thel bottom of the copper. f

One constructional'form of the invention is illustrated in the accompanying drawing,

in whichl Figure 1 is a section through vthe new storage receptacle, 'and Fig'Q an elevation; partly in section, of the peroxid container alone, drawn to. an enlarged scale.

lThe can or like vessel ari, iilled with Washingpowder b, contains a second much smaller vessel c for the alkali peroxid, e. g'. sodium peroxid, this container the washing-powder. The wall of the container cf is formed by a stiff spirally wound Wire, whosev coils lie tightly .against each other, andare thinly coated with tin g, so as to constitute an impervious'shell.- The ends of the container 'c are each closed by a per- Jforated disk d, anda cap e covering the hole in thedisk.: fis a-layer of some readilyy melting substance, whereby the cap e is held in position.. This substance may suitably consist of amixture oiistearic acid, olein, etc., whose melting-point is low (4G-15 d`e grees c'entigrade).

The adva-tagesf of this method of construction are that a small 'quantity of the c lying detached in readily melting substance suiiices to close the container, lwhereby rapid opening of the latter is-insured; that the cap e rea/dily drops off and the disk d prevents any particles of sodium present in the peroxid in'rising to the surface and burning; further, that the costs of manufacture are essentially reduced, and the disks cl vhave only to be pushed in laterally between two coils previous to tinning of the shell.

In use the contents of the receptacle I prefer to proceed 'as follows The contents of the vessel a are shaken into cold waterithe valkali peroxid container c 'drops tothe bot'v tom. The water is slowly heated, and after the rings f of the readily melting substance have' melted, the peroxid comes intodirect contact with the water, alkali hydroxid and hydrogen peroxid being formed.. Since in domestic households the copper isnalmost always heated from below, the substance closing the peroxid container will be melted by the direct transmission of heat from the hot' bottom of the copper tp the container.

'On decomposition of the peroxid, bubbles ascend.A After Well stirring, the clothes are placed in the copper and the lye brought to the boil. `After boiling for from 1-12 ours the clothes 'are rinsed, blued and hung up.

The wall of the container for the peroxid f might also be of a soft, spirally wound wire.

` rise from the lowest part of the copper at a low temperature of the'water.

The walls of the naturally also be of etc.

The new receptacle has the advantage that on the contents being shaken into water the peroxid container at once sinks alone to the bottom, so that all actions resulting occur below the surface of the water. This is not the case with the Well known stearic acid cartridges, which are spe'cically lighter than water, are dilicultly soluble and float on the surface of the liquid; nor with those receptacles with which, on their being emptied, the peroxid is distributed over the surface of the water. For in this manner the greater part of the active oxygen is lost. It is equally disadvantageous if the cartrid e is located in a soap block, for soap disso Ves with a certain rapidity only in quite hot water, and at this temperature the hydrogen peroxid liberated is decomposed too rapidly and loses its bleaching pro erty..

Having now particular y described and ascertained the nature of the said invention peroxid ycontainer might stoneware, glass, metal,

. disk and a readilyr melting and in what manner-the same is to be performed, I declare that. what I claim is:

l. In combination, an exterior vessel con!r taining Washing powder, and an inner smaller box containing peroxid and embed# ded in the washing powder, said inner box the peroxid by the said covers.

2. In combination, an vexterior vessel containing Washing-powder, an inner smaller box embedded in the washing-powder and containing alkali peroxid, the Saidinner vessel consisting of ashell 4of spirally wound wire, the coils of which are connected by tinning and have open ends, and a readily melting ,substance for closing said ends.

A vessel for alkali peroxid comprising an open ended shell of spirally wound Wire,

the coils of which are connected by tinning, a perforated disk fixed at each end of said shell, a cap covering the perforation in such ing the said cap in position.

4. A vessel for alkali an open ended shell of spirally Wound Wire, the coils of which are connected by tinning, a perforated disk at each end of such shell the edges of which are held by two contiguous wire coils, a domed cap covering the perforation in the disk and a ring of readily melting substance retaining the cap in p0- sition.

In testimony that I claim the foregoing as my invention, I have signed my nainev in presence of two subscribing witnesses.

4 ERNST HERRMANN.

Witnesses:

ERNST FISCHER, JOSEPH SIMON.

peroxid, comprising substance retainf 

